Saliva tube



Oct. 20,1925. 1,557,744

M. L. TOBRINER SALIVA TUBE Filed July 17. 1922 [NVENTUR M LT UEHINERPatented Oct. 20, 1925.

PATENT OFFICE.

MARION L. TOBRINER, OF SAN FRANCISCO, CALIFORNIA.

SALIVA TUBE.

Application filed July 17, 1922. Serial No. 575,498.

To all cu/wmit may concern:

Be it' known that I, MARION L. TonRiNnn, a citizen of the United States,residing at the city and county of San Francisco and State ofCalifornia, have invented certain new and useful Improvements in SalivaTubes, of which the following is a specification.

The present invention relates to the class of saliva tubes used indental operations.

The object of the invention is to provide a I simple and efficientdevice of the class described, and one that may be easily and quicklycleaned and sterilized. A further object is to provide means forpreventing the soft tissues of the mouth from being drawn into theintake orifices of the deviceby the suction or other pressure, therebyclogging said orifices and preventing the free flow of salivatherethrough.

In the form illustrated in the accompanying drawings, and described,hereinafter, my device is constructed principally of some suitablemetal, but it is obvious that other and cheaper materials, such as glassor clay,

may be substituted, so that thedevice may,

if desired, be thrown away after being used once, thus obviatingentirely the necessity for cleaning. It is to be understood, moreover,that other changes within the scope of the claim hereto appended, may bemade in the form and construction of the device without departing fromthe spirit of the invention.

In order fully to comprehend the invention, reference should be had tothe accompanying drawings, wherein Fig. 1 is a side elevation of mysaliva tube.

Fig. 2 is a front elevation thereof.

Fig. is a part-sectional side elevation.

Fig. 4 is a detailed View of the end portion of a modified form of mydevice.

In the drawings, the reference numeral 1 designates the tubular stem ofmy saliva tube, which is bent over near its upper end, in the usualmanner, to enable it to be inserted into and to hang from the mouth ofthe patient. Said stem is understood to be adapted for connection, atits lower end 3,

to any suitable and well known device for producing the necessarysuction and for the disposal of the saliva.

At its upper end the stem 1 terminates in an intake nozzle 8, formedpreferably of a tube of reduced diameter'secured to the end of saidstem 1. teriorly threaded to receive a guard 42, which comprises anelongated can adapted to surround and enclose the nozzle 3, and having aplurality of perforations 5 formed in its walls. The saliva thus entersthe guard cap through the perforations 5, passes between said guard andthenozzle 3, and enters the latter through its lower openend.

On account of the length of the guard cap 4 and the plurality ofopenings 5 therein,

there will always be a free passage for the flow of saliva, for, eventhough the lower openings 5 in said guard cap may be obstructed by thesoft tissues of the mouth, the upper openings will still be free.

The guard cap 4, being screwed upon the end of the stem 1, is readilyremovable for cleaning and sterilizing. If desired, said guard cap 4 maybe formed to carry a laterally extending wing or other member 6, asshown in Fig. 4:, which can be utilized as a tongue deflector or shield,to permit greater freedom of operation in some particular region of themouth.

Having thus described my invention, what I claim as new and desire tosecure by Let-' ters Patent of the United Etates is A saliva. tubecomprising a tubular stem formed with a U-bend and an end extension, aone piece cap enclosing the terminal end of the stem and into which aportion'of the stem end extension projects to a point near the bottom ofthe cap, with the stem end exten-' sion and cap side walls in spacedrelation, the

The end of said stem is exwall of the cap being of substantiallyselfsustaining material and provided with a plurality of perforationsarranged at spaced points throughout its area.

In testimony whereo'fI have signed my name to this specification.

MARION L. TOBRINER.

